42-391-31577

TOM O'CONNOR(5600 FOOT SAND)UNIT

REFUGIO County · District 2 · HILCORP ENERGY COMPANY

Permits

7

Max Depth

6,500 ft

First Permit

1982-08-02

Latest Activity

2012-03-07

Lifespan

30 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

Shut-In

Plugged

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Cancelled 2022-06-23 UIC #000105275 permitted 2012-06-08

Permitted Volume

10,000 bbl/d

Max Pressure

2,000 psi

Injection Interval

5,530–5,580 ft

Injected (12mo)

Monthly injected volume (bbl, from H-10 filings through 2021-11-01)

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (21) Elevation 56 ft

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
LARGARTO (Lagarto)1,500 ft-1,444 ft
SURVACE SAND CLAY1,500 ft-1,444 ft
LARGARTO (Lagarto)2,750 ft-2,694 ft
OAKVILLE 2,750 ft-2,694 ft
CATAHOULA (MIOCENE) (Catahoula)3,300 ft-3,244 ft
CATAHOULA MIOCENE (Catahoula)3,300 ft-3,244 ft
CATAHOULA (SINTON) (Catahoula)3,300 ft-3,244 ft
OAKVILLE 3,300 ft-3,244 ft
ANAHUAC (MIOCENE) (Anahuac)4,100 ft-4,044 ft
ANAHUAC MIOCENE (Anahuac)4,100 ft-4,044 ft
CATAHOULA 4,100 ft-4,044 ft
ANAHUAC 4,365 ft-4,309 ft
FRIO GRETA OLIGOCENE (Frio)4,365 ft-4,309 ft
FRIO-GRETA (OLIGOCENE) (Frio)4,365 ft-4,309 ft
FRIO-GRETA (Frio)4,785 ft-4,729 ft
MIDDLE FRIO (SINTON) (Frio)5,000 ft-4,944 ft
MIDDLE FRIO SINTON (Frio)5,000 ft-4,944 ft
MIDDLE FRIO (Frio)5,400 ft-5,344 ft
LOWER FRIO (OLIGOCENE) (Frio)5,880 ft-5,824 ft
LOWER FRIO OLIGOCENE (Frio)5,880 ft-5,824 ft
LOWER FRIO (Frio)6,017 ft-5,961 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Perforations (6)

IntervalType
4,380–4,390 ftPerforated
5,465–5,470 ftPerforated
5,484–5,490 ftPerforated
5,515–5,520 ftPerforated
5,542–5,550 ftPerforated
5,830–5,836 ftPerforated

Casing (4)

SizeSet DepthCement
10.75"1,530 ft770 sx
10.75"1,530 ft770 sx
2.875"5,784 ft
7"6,013 ft1,330 sx

Records & Logs

11 completion filings on record · 7 with log images at RRC.

W-2/G-1 2004-09-29
W-2/G-1 1998-03-27 log on file
W-2/G-1 1998-03-27 log on file
W-2/G-1 1998-03-27 log on file
W-2/G-1 1998-04-14
W-2/G-1 1995-03-21 log on file

+5 more filings

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in REFUGIO County.

Well Details

Well Number
3100WB
Max Depth
6,500 ft
Drill Type
Vertical
County
REFUGIO
District
2

Operator

Location
HOUSTON
P-5 Status
X (filed 2026-03-27)
Cum Oil (all leases)
75,699,281 bbl
Cum Gas (all leases)
1,779,939,645 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
3,428